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Mn-doped ZnO nanowires have been fabricated through high-temperature vapor-solid deposition process. The temperature-dependent photoluminescence properties of Mn-doped ZnO nanowires under 10 to 300 K have been investigated. The results show that the prepared samples have intensive multipeak...

The anomalous photocurrent decay in aqueous solution grown ZnO nanowires (NWs) under steady ultraviolet light illumination have been investigated. The photocurrent growth-decay measurements using the above-band and subband gap light excitation energies in the as-grown and annealed NWs show that...

Mn-doped ZnO nanowires have been fabricated through a high temperature vapor-solid deposition process. The low-temperature photoluminescence spectra of the samples show that there are multipeak emissions at the ultraviolet (UV) region (about 3.4-3.0 eV). The excitonic and phonon-assisted...

Co-doped ZnO nanowires have been fabricated through a high temperature vapor-solid deposition process. The temperature-dependent ultraviolet emission properties of Co-doped ZnO nanowires under 10-300 K were reported. The results show that there are multipeak emissions situated at the ultraviolet...

An extensive bleaching event in the summer of the year 1997-1998 affected most reefs along East Africa's shores. In the aftermath of that episode, the reefs of ÃŽle Alphonse in the Seychelles were examined and it was found that reefs along the seaward slopes of the island lost >95% of their...

Zinc Oxide (ZnO) is a potential semiconductor as photocatalyst. Nevertheless, its main absorbance wavelength is in the range of UV light, which consist only a small proportion of solar. In order to utilizing the large proportion of solar light, pure ZnO and Li-doped ZnO nanoparticles with...

The electrically pumped ultraviolet (UV) random lasing in c-axis oriented ZnO polycrystalline films has been demonstrated. For this demonstration, a metal-oxide-semiconductor structure of Au/SiOx(x<2)/ZnO film was fabricated on a silicon substrate. With ever-higher forward bias where the...